﻿// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

using System;

namespace Truncation.Detector.WPF.XamlDom
{
    /// <summary>
    /// Delegate used for XamlParserSettings.CreateInstanceCallback.
    /// </summary>
    public delegate object CreateInstanceCallback(Type type, object[] arguments);
    
    /// <summary>
    /// Settings used for the XamlParser.
    /// </summary>
    public sealed class XamlParserSettings
    {
        CreateInstanceCallback _createInstanceCallback = Activator.CreateInstance;
        XamlTypeFinder _typeFinder = XamlTypeFinder.CreateWpfTypeFinder();
        IServiceProvider _serviceProvider = DummyServiceProvider.Instance;
        
        /// <summary>
        /// Gets/Sets the method used to create object instances.
        /// </summary>
        public CreateInstanceCallback CreateInstanceCallback {
            get { return _createInstanceCallback; }
            set {
                if (value == null)
                    throw new ArgumentNullException("value");
                _createInstanceCallback = value;
            }
        }
        
        /// <summary>
        /// Gets/Sets the type finder to do type lookup.
        /// </summary>
        public XamlTypeFinder TypeFinder {
            get { return _typeFinder; }
            set {
                if (value == null)
                    throw new ArgumentNullException("value");
                _typeFinder = value;
            }
        }
        
        /// <summary>
        /// Gets/Sets the service provider to use to initialize markup extensions.
        /// </summary>
        public IServiceProvider ServiceProvider {
            get { return _serviceProvider; }
            set {
                if (value == null)
                    throw new ArgumentNullException("value");
                _serviceProvider = value;
            }
        }
        
        sealed class DummyServiceProvider : IServiceProvider
        {
            public static readonly DummyServiceProvider Instance = new DummyServiceProvider();
            
            public object GetService(Type serviceType)
            {
                return null;
            }
        }
    }
}
